What is a synthesis reaction?
Balancing Equations & Types of Reactions

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Chemistry
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11th - 12th Grade
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Hard
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1.
FLASHCARD QUESTION
Front
Back
A synthesis reaction is a type of chemical reaction where two or more simple substances combine to form a more complex product. Example: 2 H₂ + O₂ → 2 H₂O.
2.
FLASHCARD QUESTION
Front
What is a decomposition reaction?
Back
A decomposition reaction is a type of chemical reaction where a single compound breaks down into two or more simpler products. Example: 2 H₂O → 2 H₂ + O₂.
3.
FLASHCARD QUESTION
Front
What is a combustion reaction?
Back
A combustion reaction is a type of chemical reaction that occurs when a substance combines with oxygen, releasing energy in the form of light and heat. Example: C₂H₄ + 3 O₂ → 2 CO₂ + 2 H₂O.
4.
FLASHCARD QUESTION
Front
What is a single displacement reaction?
Back
A single displacement reaction is a type of chemical reaction where one element replaces another in a compound. Example: Zn + 2 HCl → ZnCl₂ + H₂.
5.
FLASHCARD QUESTION
Front
What is a double displacement reaction?
Back
A double displacement reaction is a type of chemical reaction where two compounds exchange ions or bonds to form two new compounds. Example: AgNO₃ + NaCl → AgCl + NaNO₃.
6.
FLASHCARD QUESTION
Front
What are coefficients in a chemical equation?
Back
Coefficients are the numbers placed in front of the compounds in a chemical equation to indicate the number of molecules or moles of each substance involved in the reaction.
7.
FLASHCARD QUESTION
Front
What are subscripts in a chemical formula?
Back
Subscripts are the small numbers written to the lower right of an element symbol in a chemical formula, indicating the number of atoms of that element in a molecule. Example: In H₂O, the '2' is a subscript indicating there are two hydrogen atoms.
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